That Dam Hill Marathon
- When
- Sat, Sep 20, 2025, 4:00 AM
- Where
- London, CA
- Distances
- 5K · Half Marathon · Marathon · Ultra Marathon
- Terrain
- ROAD
- Typical weather
- Mild
- Organizer
- TDH Organizing Committee
About
Runners have six hours from the 8:00 AM start time on September 20, 2025, to complete as many loops as possible on the certified course at Springbank Park. Hosted by the TDH Organizing Committee, this timed event is ideal for athletes testing ultra distances in a structured, scenic, and well-supported race environment.